doloop insn generated incorrectly (wrong mode)

[Paul Koning]

> On Oct 11, 2018, at 3:11 AM, Segher Boessenkool <segher@kernel.crashing.org> wrote:
> 
> Hi!
> 
> On Wed, Oct 10, 2018 at 08:55:12PM -0400, Paul Koning wrote:
> 
> [ snip ]
> 
>> ...
>> Why is this happening, and how can I fix it (short of removing the doloop_end pattern)?  I see a comment in loop-doloop.c about handling a FAIL of the pattern -- am I going to have to check that the wrong mode is being passed in and FAIL if so?
> 
> That is exactly what other targets do.  Maybe you can improve doloop so
> this isn't necessary anymore?  :-)

Maybe.  For now I'll take the expand and check approach.  And propose a doc patch to explain that this is needed, because it's an unusual situation. 

	paul